Refuse and low-grade-fuel burning apparatus.



T. c.'v sEmNG,

REFUSEv AND LOW GRADE FUEL BURNING APIARATUS. y

APPLICATION FILED NOV. I0. I9I3- Patented Jan. 1, 1918.

2 SHEETS-SHEET l- WTNESSES.'

I HHH L Tr. c. SEBRING.

REFUSE AND LOW GRADE FUEL BURNING APPARATUS.

APPLICATION FILED NOV. I0 I9I3.

1,252,041.' Patented Jan.1,`1918;

2 SHEETS-SHEET 2.

RNE Y sTATEs PATENT oFFIoE.

THEOSIS G. SEBBING, 0F PUEBLO, COIa-ADO.

' AND LOW-GRADE-FUEL BURNING APPARATUS.

To all whom it may concern.'

Be it known that I, THEosIs C. Samana, a citizen of the United States, res1d1n at Pueblo, in the county of Pueblo and" tate of Colorado, have invented acertain new and useful Improvement in Refuse and Low-Grade-Fuel Burnin Apparatus, of which the following is a ull, clear, and exact description.

This invention is an improvement 1n stoves and furnaces andrelates in particular to devices adapted to the burning of refuse, peat, lignite, slack and other low grade fuels. y

The primary object of the invention is the provision of a combustion chamber into which the air may be introduced centrally and the products of combustion allowed to escape laterally adjacent the bottom of the fuel bed, to the Aend that the combustion shall be maintained adjacent the bottom of the fuel bed and shall be substantially 'confined to that portion of the device. The invention also comprises a novel system of dampers for the control of the enterin and escaping gases and certain other detalls of construction which will be later described in the specification and pointed out in the appended claims. Y

InA the two sheets of drawin s accompanying this application and orming a part hereof Figure 1 is a side view of a stove embodying my invention, certain of the interior parts'being indicated in dotted lines;

Fig. 2 is partially'a front elevation and partially a central, vertical section of the stove shown in Fig. 1, the body of the stove and the fire pot appearing in central, vertical cross section and the remaining parts being shown in elevation;

Fig. 3 is a partial front elevation on an enlarged scale, showing` certain details of the damper door and the bustle pipe construction; I

Fig. 4 1s a perspective of the inner, shaking portion o the grate, looking at it from the upper side; y

Fig. 5 is a perspective of the outer, stationarv portion of the grate, looking down on it om above and showing the swinging front section in elevated position;

Fig. 6 is a perspective, looking down on it fromv above, of the base portion of the stove,

Bpeomoation of Letters Patent.

Application tiled November 10, 1913. Serial No. 800,148.

showing the ash pan, the means :Patented Jan. 1, 19.18

permitting the removaVof ashes from the ase plate,

4and the central draft regulating means;

Fig. 7 is a side elevation of -the draft regulating cylinder; and l Fig. 8 1s an enlarged fragmental view of a portion of the stationar part of the grate showing the means o mounting the swinging portion.

Fig. 9 is a vertical section through the stove casing on the line a-a of Fig. 3 look, ing in the direction of the arrow.

Referring to the drawings, 10 indicates a base which is carried by legs 11 and which forms a support for the remainder of the device. Resting on the 'base 10 is the body of the stove 12, which in this instance is shown as cylindrical in form though I do not wish tol limit myself to any particular shape for this or any of the coperating parts of my device. A bustle pipe 13 surrounds the major portion of the body of the stove, being omitted only at the front where the damper door 14 is located. Draft ports 15, suitably located at various points in the circumference of the stove body, ai'ord communication between the interior of the body portion below the grate and the bustle pipe; and dampers 16 are provided for controlling these openings. I have shown these `dampers as being sliding disks Abut it will be obvious that any other type of damper-s parting from my invention. A stack 17, lo-

-`cated at 'the rear of the device, leads from the bustle pipe and affords a means for ymember comprises a perforated, horizontal part 22 and a central, perforated dome 23. This dome has perforations in its sides only, as shown in the drawings, and may be made in the form shown or as an imperforate cone could be employed without in any Way 'desuljmountingIl a perforatedl cylinder, as den i lili central, circular opening around which there is a cylindrical sleeve 25. Snugly ttin within the sleeve 25 there is a cylindrica draft regulator 26 adapted, when in raised position, to close the openings 27 in the dome 23 and, in its other positions, to partially or entirely leave said openings unrestricted.

` rlhe draft regulator has a longitudinal partition 28 provided with rack teeth 29 adapted to be engaged by a gear 30 mounted on a shaft 31 journaled in the sleeve 25 and in the rim 32 of the base 10. A hand wheel 33 is mounted on the shaft 31 outside the stove and through these means the draft regulator may be raised and lowered as desired to open or close the openings 27 which control the draft into the re.

\ Guide tracks 34 are attached to the under side of the base 10 for supporting the ash pan 35 and perforations 36 are preferably made in the sides of these guides to admit a large amount of air to the Vash pan. As shown in F ig. 2, the draft regulator 26 is of such length as to prevent the ash pan being withdrawn except when the re lator is in its raised position, thus making 1t obligatory to cut od the openings 27 before the ash pan can be withdrawn and preventing lire being dropped to the door.Y l prefer to make openings 26X in the lower part of the .vrfinber 26 as' shown in Fig..l 7 so that air may pass into theregulator even if the pan is permitted to become full of ashes.

The front section 37 of the plot 18, having draft openings 37 therethrough, should preferably be made to swing upwardly in order to permit access to the fire pot to remove clinker which may have formed on the section 21. rlhis is conveniently permitted by making this portion of the pot side separate and mounting it on trunnions 37b tting in corresponding sockets 37a (see Fig. 8) on the adjacent pot sections. p

rThe section 37 when in lowered position abuts against a ledge 38; this ledge serves to close the bottom of the space between the fire pot and the stove body 12 at that point. The sides of this space are closed by the adjacent legs 19 and thus air may be admitted through 'the upper draft openings 40 in the door 14 and` forced to pass through the bed of the re to obtain access to the flue or stack. yAs

clearly shown in Fig. 3, the lower dr ft s41arebelow theledge 38 are' .il

intacta fore air admitted therethrough Amay pass directly to the due and thus serve to check the dre.

lin the base plate 10 there is an opening closed normally by the cover 42; this cover ma be removed to rake ashes which have col ected on .the plate 10 into the pan 35.

An opening 43 leads from the top of the body portion to the stack 17 and a damper 44 serves to control this opening. A damper 45 on the front of the stove controls an o ening which serves to admit air over the uel. 'llhese dempers are provided so that in case lire shall have worked up through the fuel to the top, the re can be checked by the admission of air on top; and also to provide means for carrying od gases which may'distil from the fuel and cause danger of explosion if retained.

The cover 46 of the stove is pivoted at 47 and is as large as the body portion 12, thus A permitting the opening of the entire top of the stove to admit baled fuel or the like. Doors 48 are provided in the ends of the bustle pipe for convenience in cleaning.

Operation.

damper 41 closed. Air is now admitted to the fire through the openings 27 in the dome 23 and, on account of the deep and compact bed of fuel over the lire, the products of combustion must find their exit laterally through the fire, through the sidesor bottom of the grate, and then through the bustle pipe to thestack. rllhe amount of the draftpermitted can be controlled through the regulator 26, this member being raised or lowered as desired by turning lthe -hand wheel 33. lf a still hotter lire than can be had by leaving the openings 27 fully open be desired, additional draft through the fire may be had by leaving the'damper 40 open, but under ordinary conditions this is not necessary. When burning fuels which give off gases, it will be found advisable to partially or wholly open the damper 44and also in some casesto admit a little air through the opening controlled bythe damper 45.

When it is desired to check the re, draft that ll have provided a construction capable of an aimed fm1 te aber of adjustments lili! and adapted tomeet all conditions of re desired or fuel to-beburnedV v Having thus described my invention, .what I claim andA desire to secure by Letters Patent is:

1. In a device of the class described, a base plate imperforate except for its central portion, a cylindrical draft regulator sub-v stantially closing the central opening in the base plate and extending thereabove, a stove body supported on said base plate, a fire' pot supported by the base plate and in spaced relation thereto, a shaking grate closing the ldampers independently controlling said openings, a bustle pipe communicating with saidopenings, and a stack communicating with said bustle pipe. A

2. In -a device `of the class described, -a base plate imperforate except for its central portion, a draft regulator passing through.

the central portionr of the base plate, a stove body supported on the base plate, a grate supported by the base plate in spaced relation thereto, s aid grate having a perforated dome extending thereabove and located in operative relation to said draft regulator, means forl moving the draft regulator vertically, and an ash pan below said draft regulator, the parts being so located and proportioned that the ash pan can not-be removed except when the draft regulator is in elevated position. l

3. In a device of the class described, a

base plate imperforate except for its .centrall portion, a stove body supportedon said base plate, a re-pot supported by the base plateand in spaced relation thereto, a grate closing the bottom o f said fire pot, said grate having a central, perforated dome rojecting thereabove, a tubular member a Ording communication between the central opening in the base plate and said dome but closed to the space between the base plate and the grate, openings in the stove body'disposed substantially throughout the circumference thereof and communicating with the space below the fire pot, dampers independently' controlling said openings, a bustle pipe communicating with said openings, and a stack 1v-@communicating with said bustle pipe.

4. In a stove structure the combination with a body and a door in said body, said door having an upper and lower set of draft openings therethrough, of a fire pot, supporting legs for said re pot, said fire pot having a hinged section between a pair of v said supporting legs, a horizontal stationary ledge against which the lower edge of the hinged section is adapted to rest, said ledge extending from the lire pot to said door and from one of said pair of supporting legs to70 the other, whereby the draft from the upper openings through said door will be conveyed through the bed of fire in the fire -pot and the draft through the lower openings conveyed toa point below the fire, pot, said ledge engaging said door between said sets of draft openings.

v 5. A stove structure, 'comprising a base A plate, a body portion, a firey pot, means to convey airinto the fire pot from a point be- A low the fire pot, and a bustle pipe arranged circumferentially and exteriorly of the body portion and at a pointbelow the upper edge of said fire pot, said body having draft ports communicating with said bustle pipe whereby the products of combustion in its exit `from the interior of the stove body, will 'be drawn through the side wall of the fire pot and through said ports into the bustle pipe.

6. In av stove structure, the combination with a base plate, an ash pan below the base plate a grate above said base plate, and a dome extendingupwardly from said grate, the wall vof said dome having a plurality of perfor-ations, of a tubular member extending through said base plate, and means to move said tubular member upwardly or downwardly to'regulate the draft through said dome, Vsaid tubular member preventing the removal of said ash pan when in lowered 10o position and closing said perforations in dome when 1n' raised posltion.

7. In 'a stove structure, a base plate, a`

the-4 1 grateabove said base plate, a dome extendy 'ing upwardly from said grate, a tubular 105 member extending through said base plate,

a partition lengthwise of the tubular member, a rack on said partition, a gear coperating with said rack and a rod connected to said gear whereby the gear may be rotated 11o to raise or lower the tubular member into or out of said dome.

In testimony whereof, I hereunto ax d'my signature in the presence of two witnesses. THEOSIS C. SEBRING, Witnesses:

DAVID KLETZKY, W. W. BoUGnToN. 

